blob: e201024c5d22c3939e2934680da3b0dea153220a [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <set>
#include "base/memory/scoped_vector.h"
#include "base/time/time.h"
#include "ui/compositor/compositor_export.h"
#include "ui/compositor/layer_animator.h"
#include "ui/gfx/animation/tween.h"
namespace ui {
class ImplicitAnimationObserver;
class LayerAnimationObserver;
class InvertingObserver;
// Scoped settings allow you to temporarily change the animator's settings and
// these changes are reverted when the object is destroyed. NOTE: when the
// settings object is created, it applies the default transition duration
// (200ms).
class COMPOSITOR_EXPORT ScopedLayerAnimationSettings {
explicit ScopedLayerAnimationSettings(scoped_refptr<LayerAnimator> animator);
virtual ~ScopedLayerAnimationSettings();
void AddObserver(ImplicitAnimationObserver* observer);
void SetTransitionDuration(base::TimeDelta duration);
base::TimeDelta GetTransitionDuration() const;
// Locks transition duration in |animator_|. When transition duration
// is locked any subsequent changes to it are ignored until the
// ScopedLayerAnimationSettings object that has locked the duration goes out
// of scope.
void LockTransitionDuration();
void SetTweenType(gfx::Tween::Type tween_type);
gfx::Tween::Type GetTweenType() const;
void SetPreemptionStrategy(LayerAnimator::PreemptionStrategy strategy);
LayerAnimator::PreemptionStrategy GetPreemptionStrategy() const;
// Sets the base layer whose animation will be countered.
void SetInverselyAnimatedBaseLayer(Layer* base);
// Adds the layer to be counter-animated when a transform animation is
// scheduled on the animator_. Must call SetInverselyAnimatedBaseLayer with
// the layer associated with animator_ before animating.
void AddInverselyAnimatedLayer(Layer* inverse_layer);
scoped_refptr<LayerAnimator> animator_;
bool old_is_transition_duration_locked_;
base::TimeDelta old_transition_duration_;
gfx::Tween::Type old_tween_type_;
LayerAnimator::PreemptionStrategy old_preemption_strategy_;
std::set<ImplicitAnimationObserver*> observers_;
scoped_ptr<InvertingObserver> inverse_observer_;
} // namespace ui